Selective water transport across uniform sub-nanometer pores in microfabricated membranes

T. Humplik; R. Raj; S. C. Maroo; T. Laoui; E. N. Wang

doi:10.31438/trf.hh2014.30

Selective water transport across uniform sub-nanometer pores in microfabricated membranes

T. Humplik
, R. Raj
, S. C. Maroo
, T. Laoui
, E. N. Wang^*

^*Corresponding author for this work

King Fahd University of Petroleum & Minerals

Research output: Chapter in Book/Report/Conference proceeding › Conference contribution › peer-review

Abstract

We demonstrate selective water transport through uniform sub-nanometer pores using microfabricated zeolite membranes. Despite advances in micro/nanoscale manipulation, creating well-defined sub-nanometer pores for transport studies is challenging. We fabricated the first model platform to characterize and measure water transport limited to ≈5.5 Å pores over >20 mm² areas. Furthermore, with these membranes, we elucidated the effect of surface chemistry and pore confinement on water permeability. Using a custom-built flow cell, we showed osmotically-driven water transport where a more hydrophobic interface allows for an ≈10x increase in water flux. These insights will help tailor high performance desalination membranes, and can be extended to gas separation, sensing, and energy storage systems.

Original language	English
Title of host publication	2014 Solid-State Sensors, Actuators and Microsystems Workshop, Hilton Head 2014
Editors	Mark G. Allen, Mehran Mehregany
Publisher	Transducer Research Foundation
Pages	107-108
Number of pages	2
ISBN (Electronic)	9781940470016
DOIs	https://doi.org/10.31438/trf.hh2014.30
State	Published - 2014

Publication series

Name	Technical Digest - Solid-State Sensors, Actuators, and Microsystems Workshop

Bibliographical note

Publisher Copyright:
© 2014TRF.

UN SDGs

This output contributes to the following UN Sustainable Development Goals (SDGs)

SDG 6 Clean Water and Sanitation

ASJC Scopus subject areas

Control and Systems Engineering
Electrical and Electronic Engineering
Hardware and Architecture

Access to Document

10.31438/trf.hh2014.30

Cite this

Humplik, T., Raj, R., Maroo, S. C., Laoui, T., & Wang, E. N. (2014). Selective water transport across uniform sub-nanometer pores in microfabricated membranes. In M. G. Allen, & M. Mehregany (Eds.), 2014 Solid-State Sensors, Actuators and Microsystems Workshop, Hilton Head 2014 (pp. 107-108). (Technical Digest - Solid-State Sensors, Actuators, and Microsystems Workshop). Transducer Research Foundation. https://doi.org/10.31438/trf.hh2014.30

Humplik, T. ; Raj, R. ; Maroo, S. C. et al. / Selective water transport across uniform sub-nanometer pores in microfabricated membranes. 2014 Solid-State Sensors, Actuators and Microsystems Workshop, Hilton Head 2014. editor / Mark G. Allen ; Mehran Mehregany. Transducer Research Foundation, 2014. pp. 107-108 (Technical Digest - Solid-State Sensors, Actuators, and Microsystems Workshop).

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title = "Selective water transport across uniform sub-nanometer pores in microfabricated membranes",

abstract = "We demonstrate selective water transport through uniform sub-nanometer pores using microfabricated zeolite membranes. Despite advances in micro/nanoscale manipulation, creating well-defined sub-nanometer pores for transport studies is challenging. We fabricated the first model platform to characterize and measure water transport limited to ≈5.5 {\AA} pores over >20 mm2 areas. Furthermore, with these membranes, we elucidated the effect of surface chemistry and pore confinement on water permeability. Using a custom-built flow cell, we showed osmotically-driven water transport where a more hydrophobic interface allows for an ≈10x increase in water flux. These insights will help tailor high performance desalination membranes, and can be extended to gas separation, sensing, and energy storage systems.",

author = "T. Humplik and R. Raj and Maroo, \{S. C.\} and T. Laoui and Wang, \{E. N.\}",

note = "Publisher Copyright: {\textcopyright} 2014TRF.",

year = "2014",

doi = "10.31438/trf.hh2014.30",

language = "English",

series = "Technical Digest - Solid-State Sensors, Actuators, and Microsystems Workshop",

publisher = "Transducer Research Foundation",

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Humplik, T, Raj, R, Maroo, SC, Laoui, T & Wang, EN 2014, Selective water transport across uniform sub-nanometer pores in microfabricated membranes. in MG Allen & M Mehregany (eds), 2014 Solid-State Sensors, Actuators and Microsystems Workshop, Hilton Head 2014. Technical Digest - Solid-State Sensors, Actuators, and Microsystems Workshop, Transducer Research Foundation, pp. 107-108. https://doi.org/10.31438/trf.hh2014.30

Selective water transport across uniform sub-nanometer pores in microfabricated membranes. / Humplik, T.; Raj, R.; Maroo, S. C. et al.
2014 Solid-State Sensors, Actuators and Microsystems Workshop, Hilton Head 2014. ed. / Mark G. Allen; Mehran Mehregany. Transducer Research Foundation, 2014. p. 107-108 (Technical Digest - Solid-State Sensors, Actuators, and Microsystems Workshop).

Research output: Chapter in Book/Report/Conference proceeding › Conference contribution › peer-review

TY - GEN

T1 - Selective water transport across uniform sub-nanometer pores in microfabricated membranes

AU - Humplik, T.

AU - Raj, R.

AU - Maroo, S. C.

AU - Laoui, T.

AU - Wang, E. N.

PY - 2014

Y1 - 2014

N2 - We demonstrate selective water transport through uniform sub-nanometer pores using microfabricated zeolite membranes. Despite advances in micro/nanoscale manipulation, creating well-defined sub-nanometer pores for transport studies is challenging. We fabricated the first model platform to characterize and measure water transport limited to ≈5.5 Å pores over >20 mm2 areas. Furthermore, with these membranes, we elucidated the effect of surface chemistry and pore confinement on water permeability. Using a custom-built flow cell, we showed osmotically-driven water transport where a more hydrophobic interface allows for an ≈10x increase in water flux. These insights will help tailor high performance desalination membranes, and can be extended to gas separation, sensing, and energy storage systems.

AB - We demonstrate selective water transport through uniform sub-nanometer pores using microfabricated zeolite membranes. Despite advances in micro/nanoscale manipulation, creating well-defined sub-nanometer pores for transport studies is challenging. We fabricated the first model platform to characterize and measure water transport limited to ≈5.5 Å pores over >20 mm2 areas. Furthermore, with these membranes, we elucidated the effect of surface chemistry and pore confinement on water permeability. Using a custom-built flow cell, we showed osmotically-driven water transport where a more hydrophobic interface allows for an ≈10x increase in water flux. These insights will help tailor high performance desalination membranes, and can be extended to gas separation, sensing, and energy storage systems.

UR - https://www.scopus.com/pages/publications/85061901641

U2 - 10.31438/trf.hh2014.30

DO - 10.31438/trf.hh2014.30

M3 - Conference contribution

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T3 - Technical Digest - Solid-State Sensors, Actuators, and Microsystems Workshop

SP - 107

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BT - 2014 Solid-State Sensors, Actuators and Microsystems Workshop, Hilton Head 2014

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ER -

Humplik T, Raj R, Maroo SC, Laoui T, Wang EN. Selective water transport across uniform sub-nanometer pores in microfabricated membranes. In Allen MG, Mehregany M, editors, 2014 Solid-State Sensors, Actuators and Microsystems Workshop, Hilton Head 2014. Transducer Research Foundation. 2014. p. 107-108. (Technical Digest - Solid-State Sensors, Actuators, and Microsystems Workshop). doi: 10.31438/trf.hh2014.30

Selective water transport across uniform sub-nanometer pores in microfabricated membranes

Abstract

Publication series

Bibliographical note

UN SDGs

ASJC Scopus subject areas

Access to Document

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Cite this